pH measurement after alkali washing
Thread Content
Is it necessary to measure the pH value of gas pipelines after alkali cleaning? Why? Prevent corrosion of the pre-compressor cooler? Or test the effect of hydrogen chloride at the alkali-washed area?
It is mainly to prevent excessive acidity from entering the compressor and affecting its service life.
Acidity has an impact on the quality of polyvinyl chloride polymer
After alkaline cleaning, the pH value must be checked to prevent corrosion of the pre-machine cooler, compressor, and distillation system, as well as to avoid the adverse effects of acidity on the distillation system and the quality of the monomer.
I don’t think it’s necessary; checking the pH value after washing is enough
Preventing excessive acidity in compression and distillation systems